30mm Spark Induction Coil with Adjustable Vibrator Type_Round End sized for high-turn-count solenoid construction

sized for high-turn-count solenoid construction where 500g of fine wire feeds multiple project builds

Metal-capped half-meter hardwood scale with horizontal-reading graduations

two 5 gram

Designed to clamp loose components into the modular demonstration system

sliding through a full octave from C5 (521Hz) to C6 (1024Hz) for hands-on comparison of length to fundamental frequency

30mm Spark Induction Coil with Adjustable Vibrator Type_Round End sized for high-turn-count solenoid constructionAdjustable vibrator induction coil producing a 30mm spark from a 6 12V DC input, fitted with two pointer electrodes and 4mm sockets, suiting work with vacuum tubes and eudiometers.